linux-kernel - Re: [PATCH 1/3] arm64: mediatek: Add config option for mt8173.

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Message-ID: <5948977.qlhSVy9R5i@wuerfel>
Date:	Wed, 25 Feb 2015 11:51:57 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Yingjoe Chen <yingjoe.chen@...iatek.com>
Cc:	Hongzhou Yang <hongzhou.yang@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org,
	Vladimir Murzin <vladimir.murzin@....com>,
	Russell King <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	eddie.huang@...iatek.com, linux-kernel@...r.kernel.org,
	alan.cheng@...iatek.com, maoguang.meng@...iatek.com,
	toby.liu@...iatek.com, Sascha Hauer <kernel@...gutronix.de>,
	dandan.he@...iatek.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/3] arm64: mediatek: Add config option for mt8173.

On Wednesday 25 February 2015 17:07:22 Yingjoe Chen wrote:
> On Tue, 2015-01-27 at 15:13 +0800, Hongzhou Yang wrote:
> > From: Hongzhou Yang <hongzhou.yang@...iatek.com>
> > 
> > The upcoming MTK pinctrl driver have a big pin table for each SoC,
> > and we don't want to bloat the kernel binary if we don't need it.
> > Add config options so we can build for one SoC only.
> > 
> > Signed-off-by: Hongzhou Yang <hongzhou.yang@...iatek.com>
> > ---
> >  arch/arm64/Kconfig | 6 ++++++
> >  1 file changed, 6 insertions(+)
> > 
> > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> > index e627ead..6213dac 100644
> > --- a/arch/arm64/Kconfig
> > +++ b/arch/arm64/Kconfig
> > @@ -151,9 +151,15 @@ menu "Platform selection"
> >  config ARCH_MEDIATEK
> >       bool "Mediatek MT65xx & MT81xx ARMv8 SoC"
> >       select ARM_GIC
> > +     select PINCTRL
> >       help
> >         Support for Mediatek MT65xx & MT81xx ARMv8 SoCs
> >  
> > +config MACH_MT8173
> > +     bool "Mediatek 8173 Soc Supprt"
> > +     depends on ARCH_MEDIATEK
> > +     default y
> > +
> >  config ARCH_SEATTLE
> >       bool "AMD Seattle SoC Family"
> >       help
> 
> Hi Arnd/Matthias,
> 
> Any comments on this patch?

Hi Joe,

Actually I just commented on a similar patch from Samsung the other
day, and I think we should make a more general decision about these:

I would rather see only one Kconfig option per SoC family and use
ARCH_MEDIATEK without any MACH_* options. We can have other options
for e.g. networking chips from Mediatek that are not closely related
but I would group all the phone and tablet chips under one option
here. Same for the other vendors of course.

Any other opinions?

	Arnd
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